# What is the frequency of f(theta)= sin 6 t - cos 8 t ?

${180}^{\circ} \mathmr{and} \pi$
Frequency of sin t and cos t --> $2 \pi$ or ${360}^{\circ}$
Frequency of $\sin 6 t = \frac{2 \pi}{6} = \frac{\pi}{3}$ or ${60}^{\circ}$
Frequency of $\cos 8 t = \frac{2 \pi}{8} = \frac{\pi}{4}$ or ${45}^{\circ}$
Frequency of f(t) --> least multiple of 60 and 45 --> ${180}^{\circ}$ or #pi